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United States Patent | 6,086,714 |
Plaskon ,   et al. | July 11, 2000 |
A method for adjusting the alkalinity of a pulp slurry in a broke pulper, and more particularly, to adjusting the pH of the pulp slurry using carbon dioxide.
Inventors: | Plaskon; David John (Brick, NJ); Piazza; Richard Joseph (Harleysville, PA) |
Assignee: | Praxair Technology, Inc. (Danbury, CT) |
Appl. No.: | 957035 |
Filed: | October 24, 1997 |
Current U.S. Class: | 162/63; 162/70; 162/90; 162/191 |
Intern'l Class: | D21B 001/34 |
Field of Search: | 162/7,9,191,8,4,90,63,29,38,40,20 241/18,21,28 |
5674358 | Oct., 1997 | Espy | 162/7. |
5691193 | Nov., 1997 | Paice et al. | 162/9. |